docstr: unknown values throw out an error 
docstr_tok: ["unknown","values","throw","out","an","error"]
code: def test_note2midi_unknown_values(self, note):
      "unknown values throw out an error"
      assert_raises(ValueError, note2midi, note)
  
imports: from __future__ import unicode_literals
  from aubio import note2midi, freq2note, note2freq, float_type
  from numpy.testing import TestCase
  from _tools import parametrize, assert_raises, skipTest
label_desc: Use image node_id 1 for calling the Test_note2midi_unknown_values obj's underlying member method code with example usage: obj.test_note2midi_unknown_values(note) without return types